A fixing structure of a gear coupling
Patent Information
- Application Number
- CN202522506445.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-26
AI Technical Summary
[0003]现有的鼓形齿式联轴器中,由于高强度的工作,很容易发生磨损,因此时常需要进行更换
1、去除了旋转螺钉的步骤,简化了联轴器的安装过程,以提高拆装速度;
Smart Images

Figure CN224859921U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coupling technology, and more specifically, to a fixing structure for a drum-shaped gear coupling. Background Technology
[0002] Drum-shaped gear couplings are rigid-flexible couplings with radial, axial, and angular misalignment compensation capabilities. Compared with CL-type straight gear couplings, they have advantages such as compact structure, small turning radius, large load capacity, high transmission efficiency, low noise, and long maintenance cycle.
[0003] Existing gear couplings with drum-shaped teeth are prone to wear due to high-intensity operation, thus requiring frequent replacement. However, the disassembly and assembly of existing gear couplings with drum-shaped teeth are relatively cumbersome.
[0004] Therefore, it is necessary to provide a fixing structure for a drum-shaped gear coupling to solve the above problems. Utility Model Content
[0005] Based on the aforementioned problems in the prior art, the purpose of this application is to provide a fixing structure for a drum-shaped gear coupling, achieving the effect of convenient assembly and disassembly.
[0006] The technical solution adopted by this application to solve its technical problem is: a fixed structure of a drum-shaped gear coupling, including two rotating shafts, each of the two rotating shafts having a gear sleeve and a shaft sleeve fitted at one of their opposite ends, the gear sleeve being located between the two shaft sleeves, each of the two rotating shafts having a pin groove on its sidewall at one of their opposite ends, the shaft sleeve having a receiving groove corresponding to the position of the pin groove on its inner wall, a retaining pin being provided inside the receiving groove, the retaining pin being adapted to the pin groove, a retaining rod being provided below the retaining pin, a retaining groove being provided at the bottom of the pin groove being adapted to the retaining rod, an extension plate corresponding to the position of the receiving groove being fixed on the side of the gear sleeve near the shaft sleeve, the extension plate being adapted to the receiving groove, a mating groove being provided inside the gear sleeve, the mating groove being adapted to the retaining pin.
[0007] Furthermore, the bushing is provided with a through hole, which connects the outer wall of the bushing with the inside of the receiving groove. A linkage rod is provided inside the through hole, and the lower end of the linkage rod is fixed to a locking pin.
[0008] Furthermore, a receiving hole is provided at the lower end of the through hole, and an elastic element is provided between the end of the receiving hole and the locking pin.
[0009] Furthermore, an avoidance hole is provided at the upper end of the through hole, and a handle is provided at the upper end of the linkage rod after it extends into the avoidance hole and rotates.
[0010] Furthermore, the depth of the mating groove minus the thickness of the extension plate is greater than the thickness of the locking pin.
[0011] Furthermore, a number of magnets are fixed to one end of the bushing near the gear sleeve.
[0012] Furthermore, the outer wall of the gear sleeve is provided with a plurality of drum-shaped teeth in the circumferential direction, and a coupling sleeve is provided between the two gear sleeves, the inner sides of both ends of the coupling sleeve being adapted to the drum-shaped teeth.
[0013] The beneficial effects of this utility model are: 1. The step of rotating the screw has been eliminated, simplifying the installation process of the coupling and improving the speed of assembly and disassembly; 2. When the drum-shaped gear is damaged, only the gear sleeve needs to be replaced, which reduces the amount of metal scrap and the amount of metal in the replacement parts, thus saving costs. Attached Figure Description
[0014] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is an overall schematic diagram of the fixing structure of a drum-shaped gear coupling in this application; Figure 2 for Figure 1 An exploded view of the fixing structure of a drum-shaped gear coupling; Figure 3 for Figure 2 A schematic diagram of the assembly process of the rotating shaft, gear sleeve, and bushing; In the picture: 1. Rotating shaft; 11. Pin groove; 12. Snap groove; 2. Gear sleeve; 21. Extension plate; 22. Mating groove; 23. Drum-shaped tooth; 3. Bushing; 31. Receiving groove; 32. Through hole; 33. Receiving hole; 34. Clearance hole; 35. Magnet; 4. Locking pin; 41. Linkage rod; 42. Elastic element; 43. Handle; 44. Locking lever; 5. Coupling sleeve. Detailed Implementation
[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0016] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0017] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0018] like Figure 1-3 As shown, this application provides a fixing structure for a drum-shaped gear coupling, including two rotating shafts 1. Each of the two rotating shafts 1 has a gear sleeve 2 and a shaft sleeve 3 fitted at one of their opposite ends, with the gear sleeve 2 located between the two shaft sleeves 3.
[0019] The two rotating shafts 1 are provided with pin grooves 11 on the side walls at opposite ends. The inner wall of the bushing 3 is provided with a receiving groove 31 corresponding to the position of the pin groove 11. A retaining pin 4 is provided inside the receiving groove 31, and the retaining pin 4 is adapted to the pin groove 11.
[0020] The bushing 3 has a through hole 32, which connects the outer wall of the bushing 3 to the inside of the receiving groove 31. A linkage rod 41 is installed inside the through hole 32, and the lower end of the linkage rod 41 is fixed to the locking pin 4.
[0021] A receiving hole 33 is provided at the lower end of the through hole 32. An elastic element 42 is provided between the end of the receiving hole 33 and the locking pin 4. In this embodiment, the elastic element 42 is a spring and is sleeved on the linkage rod 41.
[0022] An obstacle hole 34 is provided at the upper end of the through hole 32. The upper end of the linkage rod 41 extends into the obstacle hole 34 and is provided with a handle 43 after rotation.
[0023] A locking rod 44 is provided on the lower side of the locking pin 4, and a locking groove 12 adapted to the locking rod 44 is provided at the bottom of the pin groove 11.
[0024] An extension plate 21 corresponding to the position of the receiving groove 31 is fixed on the side of the gear sleeve 2 near the shaft sleeve 3, and the extension plate 21 is adapted to the receiving groove 31.
[0025] A mating groove 22 is provided on the inner side of the gear sleeve 2. The mating groove 22 is adapted to the locking pin 4. The depth of the mating groove 22 minus the thickness of the extension plate 21 is greater than the thickness of the locking pin 4.
[0026] Several magnets 35 are fixed to one end of the bushing 3 near the gear sleeve 2.
[0027] The outer wall of the gear sleeve 2 is provided with a number of drum-shaped teeth 23, and a coupling sleeve 5 is provided between the two gear sleeves 2. The inner sides of both ends of the coupling sleeve 5 are adapted to the drum-shaped teeth 23.
[0028] like Figure 3As shown, during installation, the bushing 3 and the gear sleeve 2 are first misaligned by one end and then assembled. At the same time, the locking pin 4 is inserted into the mating groove 22. Then, the bushing 3 and the gear sleeve 2 are aligned so that the extension plate 21 is inserted into the receiving groove 31, and the locking pin 4 is also inserted into the lower end of the mating groove 2.
[0029] After the bushing 3 and gear sleeve 2 are assembled, the magnet 35 temporarily fixes the bushing 3 and gear sleeve 2 together. At this time, the handle 43 overcomes the elastic force of the elastic element 42 and lifts the linkage rod 41, causing the locking pin 4 and locking rod 44 to rise a distance. At this time, the rotating shaft 1 can be inserted into the inside of the bushing 3 and gear sleeve 2, and the locking pin 4 and locking rod 44 will not jam the rotating shaft 1.
[0030] After the rotating shaft 1 is fully inserted into the bushing 3 and gear sleeve 2, the handle 43 is released, and the elastic element 42 pushes the locking pin 4, causing the locking rod 44 to engage with the locking groove 12. At this time, the locking rod 44 and the locking groove 12 prevent the bushing 3 and gear sleeve 2 from coming off the rotating shaft 1, and the rotating shaft 1 can maintain the alignment of the bushing 3 and gear sleeve 2. The locking pin 4 can prevent the bushing 3 and gear sleeve 2 from separating by locking the mating groove 22. Through the mutual cooperation between the pin groove 11, the locking pin 4, the mating groove 22, the extension plate 21 and the receiving groove 31, the rotating shaft 1, gear sleeve 2 and bushing 3 are fixed together. After that, it is only necessary to insert the two bushings 3 into the two ends of the coupling sleeve 5 to complete the coupling between the two rotating shafts 1.
[0031] This combination method eliminates the step of rotating the screw, simplifying the coupling installation process and improving disassembly and assembly speed. When the drum-shaped gear 23 is damaged, only the gear sleeve 2 needs to be replaced, thereby reducing the amount of metal scrap and replacement parts required, thus saving costs.
[0032] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0034] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A fixing structure for a drum-shaped gear coupling, characterized in that: It includes two rotating shafts (1), and a gear sleeve (2) and a bushing (3) are fitted on the opposite ends of the two rotating shafts (1). The gear sleeve (2) is located between the two bushings (3). The sidewalls of the opposite ends of the two rotating shafts (1) are provided with pin grooves (11). The inner wall of the bushing (3) is provided with a receiving groove (31) corresponding to the position of the pin groove (11). A locking pin (4) is provided inside the receiving groove (31). The locking pin (4) is adapted to the pin groove (11). A locking rod (44) is provided on the lower side of the locking pin (4). A locking groove (12) adapted to the locking rod (44) is provided at the bottom of the pin groove (11). An extension plate (21) corresponding to the position of the receiving groove (31) is fixed on the side of the gear sleeve (2) near the bushing (3). The extension plate (21) is adapted to the receiving groove (31). A mating groove (22) is provided on the inner side of the gear sleeve (2). The mating groove (22) is adapted to the locking pin (4).
2. The fixing structure of a drum-shaped gear coupling according to claim 1, characterized in that: The bushing (3) is provided with a through hole (32), which connects the outer wall of the bushing (3) with the inside of the receiving groove (31). A linkage rod (41) is provided inside the through hole (32), and the lower end of the linkage rod (41) is fixed with a locking pin (4).
3. The fixing structure of a drum-shaped gear coupling according to claim 2, characterized in that: The lower end of the through hole (32) is provided with a receiving hole (33), and an elastic element (42) is provided between the end of the receiving hole (33) and the locking pin (4).
4. The fixing structure of a drum-shaped gear coupling according to claim 2, characterized in that: The upper end of the through hole (32) is provided with a clearance hole (34), and the upper end of the linkage rod (41) extends into the clearance hole (34) and is provided with a handle (43) for rotation.
5. The fixing structure of a drum-shaped gear coupling according to claim 1, characterized in that: The depth of the mating groove (22) minus the thickness of the extension plate (21) is greater than the thickness of the locking pin (4).
6. The fixing structure of a drum-shaped gear coupling according to claim 1, characterized in that: Several magnets (35) are fixed to one end of the bushing (3) near the gear sleeve (2).
7. The fixing structure of a drum-shaped gear coupling according to claim 1, characterized in that: The outer wall of the gear sleeve (2) is provided with a number of drum-shaped teeth (23) in the circumferential direction. A coupling sleeve (5) is provided between the two gear sleeves (2). The inner sides of both ends of the coupling sleeve (5) are adapted to the drum-shaped teeth (23).